Only in a land of plenty like ours could this staggering statistic be true: 40 percent of food goes uneaten—most of it tossed in landfills or torched in incinerators. The social and ecological costs...

In the documentary “Fed Up,” Katie Couric and Laurie David depict America’s sugar-saturated food system in ways that are at once startling and all too familiar. It reveals why Americans have such a hard...